Multi-Tower Line Focus Fresnel Array

Solar Energy ◽  
2003 ◽  
Author(s):  
David R. Mills ◽  
Graham Morrison ◽  
Peter le Lievre
Keyword(s):  
New South ◽  
New South Wales ◽  
High Capacity ◽  
Solar Array ◽  
Multiple Receivers ◽  
South Wales ◽  
Linear Fresnel Reflector ◽  
Set Up ◽  
Very High ◽  
Line Focus

As an alternative to conventional tracking trough systems, one may use line focus Fresnel reflector systems. Before the current Australian work, each field of Fresnel reflectors was directed to a single tower. However, efficient systems of very high ground utilisation can be set up if a field of reflectors uses multiple receivers on different towers (Mills and Morrison, 1999). This paper describes an Australian line focus system, called the Compact Linear Fresnel Reflector (CLFR) system and a project to produce an initial 25MWe solar array. The array will be used as a retrofit preheater for a coal fired generating plant. Future use of such arrays as stand alone high capacity factor powerplants in New South Wales are discussed.

Multi-tower Line Focus Fresnel Array Project

2005 ◽  
Vol 128 (1) ◽  
pp. 118-120 ◽  
Author(s):  
David R. Mills ◽  
Graham Morrison ◽  
John Pye ◽  
Peter Le Lièvre
Keyword(s):  
Solar Thermal ◽  
Solar Array ◽  
Multiple Receivers ◽  
Reflector System ◽  
Linear Fresnel Reflector ◽  
Very High ◽  
Line Focus

As an alternative to conventional tracking solar thermal trough systems, one may use line focus Fresnel reflector systems. In a conventional Fresnel reflector design, each field of reflectors is directed to a single tower. However, efficient systems of very high ground utilisation can be setup if a field of reflectors uses multiple receivers on different towers. This paper describes a line focus system, called the compact linear fresnel reflector system and a project to produce an initial 95 MWth solar array. The array will be used as a retrofit preheater for a coal fired generating plant.

Seat Belts-Some Aspects of Compulsory Wearing in New South Wales, Australia

1977 ◽  
Vol 191 (1) ◽  
pp. 31-38 ◽  
Author(s):  
R. G. Vaughan
Keyword(s):  
New South ◽  
Seat Belt ◽  
New South Wales ◽  
Seat Belts ◽  
South Wales ◽  
Australian State ◽  
Tentative Evidence ◽  
The Law ◽  
Serious Injuries ◽  
Very High

The effects of compulsory seat belt wearing have been evaluated for the most populous Australian State — New South Wales. Wearing rates are now very high and although surveys have shown increasing acceptance of the safety value of belts, a sizable minority of motorists apparently only wear their belts because of the law. Compulsory belt wearing appears to have saved a substantial number of vehicle occupant lives, with the main saving being among young adults. Urban deaths appear to have been affected more than rural deaths. There is tentative evidence of reductions in serious injuries among occupants. A side effect of the law has been increased usage of restraining systems for young children.

Hornblendes from some basic hornfelses in the New England region, New South Wales

1965 ◽  
Vol 34 (268) ◽  
pp. 52-65 ◽  
Author(s):  
R. A. Binns
Keyword(s):  
New England ◽  
Ferrous Iron ◽  
New South ◽  
New South Wales ◽  
Progressive Increase ◽  
Contact Metamorphism ◽  
South Wales ◽  
Bluish Green ◽  
Very High

SummaryWith progressive increase in grade of contact metamorphism, aluminous hornblendes in some New England basic hornfelses change from a pale blue-green variety with ragged actinolitic habit, to a deeper bluish-green variety, then to a deeply coloured brownish type with granular habit. At all stages the coexisting plagioclase is appreciably calcic. No outer aureole of albite-epidote-actinolite hornfels has been recognized. The higher grade hornblendes are richer in alkalis and titanium, and poorer in octahedrally co-ordinated aluminium than those formed at low grades. Two analysed hornblendes display an unusual excess of calcium, which occupies the Y site, and another has a very high content of ferrous iron and potassium.

Report of the Special Commission of Inquiry into Child Protection Services in New South Wales (the Wood Report): A review and commentary

2009 ◽  
Vol 34 (2) ◽  
pp. 17-23 ◽  
Author(s):  
Patricia Hansen ◽  
Frank Ainsworth
Keyword(s):  
Child Protection ◽  
New South ◽  
New South Wales ◽  
Child Wellbeing ◽  
Child Protection Services ◽  
Special Commission ◽  
South Wales ◽  
Set Up

The Wood Report is the product of a Special Commission of Inquiry into Child Protection Services in NSW that was set up in June 2006 and reported in November 2008. In March 2009, the NSW Government published a response to the report, ‘Keep them safe: A shared approach to child wellbeing’. The NSW Parliament in April 2009 also passed the Children Legislation Amendment (Wood Inquiry Recommendations) Act 2009 with little debate. This legislation has introduced many of Justice Wood's recommendations and has enacted other changes that were not included in the Commission of Inquiry report. While many of the amendments are welcome, there is cause for concern about the likely consequences of some of the new provisions.

Use of sap trees by the yellow-bellied glider in the Shoalhaven region of New South Wales

2000 ◽  
Vol 27 (2) ◽  
pp. 217 ◽  
Author(s):  
Ross L. Goldingay
Keyword(s):  
New South ◽  
New South Wales ◽  
South Wales ◽  
Sap Feeding ◽  
Petaurus Australis ◽  
Management And Conservation ◽  
Very High

This study examined the use of sap trees by yellow-bellied gliders (Petaurus australis) at 33 sites scattered through approximately 10 000 ha of forest. In all, 62 grey gum (Eucalyptus punctata) trees were assessed during seven visits over a 2-year period for use by gliders in sap feeding (either currently or during the previous month). About 40% of trees had been used prior to each visit, indicating a very high pattern of use. About 29% of trees were used prior to many visits while 18% were not used at all. Gliders made small incisions on trees, apparently to test their suitability for sap feeding. These test incisions were seen several times on all the sap trees that remained unused during this study. They were made on about 60% of trees that were not used for sap feeding within the month prior to a visit. At 23 of the 33 sites, test incisions were also observed on E. punctata non-sap trees. These observations show that gliders actively check sap trees and non-sap trees. This study confirms the importance of sap trees to the yellow-bellied glider and highlights the need for further research that aims to identify the key parameters of these trees to which gliders respond. This would greatly facilitate the management and conservation of the yellow-bellied glider.

Temperate rice technology for the 21st century: an Australian example

1994 ◽  
Vol 34 (7) ◽  
pp. 877 ◽  
Author(s):  
DJ McDonald
Keyword(s):  
21St Century ◽  
New South ◽  
New South Wales ◽  
Environmental Stability ◽  
Export Demand ◽  
Potential Yield ◽  
Yield Increase ◽  
South Wales ◽  
High Yields ◽  
Very High

Performance of the New South Wales rice industry is examined in the context of global rice production and demand into the 21st century. The need to double global production of rice by 2030 without major expansion of area will ensure strong export demand from temperate rice growing areas including southern New South Wales. Factors leading to the very high yields now achieved are discussed and the potential for further increasing average yields that are already the highest in the world is explored in terms of maintaining gains already made, raising the yield ceiling closer to the environmental limit, and reducing the gap between potential yield and those achieved by producers. Details are provided of the release and utilisation of varieties from the breeding program, and significant barriers to further yield increase are identified. The importance of 'Ricecheck' (a simple decision support system for farmers) is discussed. Problems of tailoring crop and land use practices to obtain environmental stability while at the same time substantially increasing productivity are highlighted.

Barium-felspars from Broken Hill, New South Wales (With Plate XIV.)

1946 ◽  
Vol 27 (192) ◽  
pp. 166-174 ◽  
Author(s):  
E. R. Segnit
Keyword(s):  
Shear Zone ◽  
New South ◽  
New South Wales ◽  
New Variety ◽  
Silicate Minerals ◽  
Rock Types ◽  
Broken Hill ◽  
South Wales ◽  
Mineralogical Investigation ◽  
Very High

At two localities on the outskirts of the township of Broken Hill—near the De Bavay shear zone, and at ‘The Piggery’—W. R. Browne reported unusual rock types rich in barium. His statement is accompanied by an analysis by H. P. White (analyst to the Mines Dept.) of one of these rocks, which contains 9·23% BaO. Subsequently S. R. Nockolds and E. G. Zies examined the felspars of the rock analysed by White with a view to ascertaining whether they are barium-containing varieties.In view of the very high barium content of some of the occurrences now being investigated, much higher than that of the rock examined by Nockolds and Zies, a further mineralogical investigation was undertaken with the results recorded below. The rocks under examination were light-coloured gneisses containing up to 15% BaO. They are distributed as lenses and streaks in an acid gneiss. A specimen of the latter rock was analysed and found to contain only 0·09% BaO. The barium was found to occur in four felspars, one being a new variety of celsian. The minerals studied were celsian, calciocelsian, hyalophane, and barium-plagioclase. A careful search was made for other barium silicate minerals such as sanbornite, but none was found.

Features of the growth and mineral nutrition of Noogoora burr (Xanthium occidentale Bertol.), a noxious weed in central New South Wales

1983 ◽  
Vol 34 (2) ◽  
pp. 155 ◽  
Author(s):  
PJ Hocking
Keyword(s):  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
High Capacity ◽  
Crop Species ◽  
Plant Parts ◽  
South Wales ◽  
Fruit Maturity ◽  
Total Plant ◽  
Noxious Weed

Aspects of the growth and accumulation, partitioning and redistribution of selected minerals in the weed Xanthium occidentale (Noogoora burr) are described for a population from central New South Wales. Plants required 240 days from emergence to fruit maturity. Uptake of most elements occurred until midway through fruit development. Rates of nutrient intake by roots were similar to those of some crop species. Fruits made up of 46% of the dry matter of a mature plant and contained 58- 79 % of its P, N and S, 18-39 % of the Cl, Na, Mg and K, but < 19 % of the Ca and Mn. Dead leaves had the greatest proportion of the total plant Mg, Na, Cl, and especially Mn and Ca. The elements P, N and S were redistributed from above-ground parts to the fruits with efficiencies of 43-63 %, but there was negligible (< 10%) redistribution of Cl, Mn, Ca and Na. Redistribution from above-ground plant parts could have provided 43-55 % of the dry matter, N, P, K, S and Mg accumulated by fruits. The amount of free nitrate-N stored in stems and leaves decreased rapidly during fruit filling. Leaves were more important than stems as a source of nutrients for redistribution, but the stem was more important for redistribution of dry matter. Cotyledons of parent seeds redistributed dry matter and nutrients to seedlings with net efficiencies ranging from 16-97 %, but gained Cl and Ca. Redistribution from cotyledons provided 2-45 % of the amount of a nutrient accumulated by seedlings. Seeds made up 38 % of the fruit dry matter and had 60-93% of its S, P and N, but only small proportions of its Ca, Cl, Na and Mn. Seeds had 38% protein and 39% oil. It is concluded that the high capacity of Noogoora burr to accumulate reserves of nutrients for redistribution to fruits contributes to its success as a weed.

Creating the Aboriginal Pauper: Missionary Ideas in Early 19th Century Australia

2008 ◽  
Vol 21 (1) ◽  
pp. 6-30 ◽  
Author(s):  
Anne O'Brien
Keyword(s):  
Indigenous People ◽  
New South ◽  
New South Wales ◽  
Food Sources ◽  
White Children ◽  
Early 19Th Century ◽  
Poor Whites ◽  
South Wales ◽  
Key Sites ◽  
Set Up

AbstractThis article examines the relationship between nineteenth century English poor law discourse and missionary work in colonial Australia. The text analyses key sites of Christian missionary philanthropy in New South Wales (NSW) and Victoria in the period 1813-1849. It looks at changes in the ethos of one benevolent institution set up for poor whites, the Benevolent Society of New South Wales. Activated by Christian paternalism at its foundation in 1813 the ethos of this institution became dominated by the language of moral reform by the 1830s. The article also examines the first institution established for Indigenous people, the Native Institution at Parramatta, NSW, founded in 1814. Its aims and character will be compared and contrasted with those of the Female and Male Orphan schools for white children. The text considers also how Christian philanthropic visions for the improvement of Indigenous people were affected by factors such as accelerating pastoral expansion, loss of Indigenous food sources and retaliatory violence. Cet article examine la relation entre le discours relatif aux lois sur les pauvres au 19e siècle en Angleterre et le travail missionnaire en Australie coloniale, en se penchant sur les sites clés de la philanthropie chrétienne dans le New South Wales et Victoria durant les années 1813 à 1849. Ainsi, le texte analyse les transformations de l'éthos d'une institution bénévole créée pour s'occuper des pauvres blancs, la Société Bénévole de New South Wales. Alors qu'il était un produit du paternalisme chrétien à sa fondation en 1813, l'ethos de l'institution fut marqué par le langage de la réforme morale vers les années 1830. Le regard se porte également sur la première institution pour les peuples indigènes, la Native Institution at Parramatta, fondée en 1814. Ses buts et son caractère sont comparés et contrastés avec ceux des orphelinats pour filles et garçons blancs. Le texte considère enfin comment les vues philanthropiques chrétiennes pour l'amélioration des peuples indigènes ont été affectées par des facteurs tels que l'expansion pastorale croissante, la perte de nourriture indigène et la violence de représailles.

Sign in / Sign up

Export Citation Format

Share Document